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virtio: Remove unused PCI cap parsing

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This commit is contained in:
K. Lange 2022-04-18 10:03:19 -04:00
parent 2639c786da
commit 5ed3dc0640
1 changed files with 0 additions and 23 deletions
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23
kernel/arch/aarch64/virtio.c
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@ -127,29 +127,6 @@ static void virtio_tablet_thread(void * data) {
pci_write_field(device, PCI_BAR4, 4, t|8);
pci_write_field(device, PCI_COMMAND, 2, 4|2|1);
uint8_t caps = pci_read_field(device, 0x34, 1) & 0xFC;
dprintf("virtio: capabilities at 0x%02x\n", caps);
if (caps) {
uint8_t next = caps;
do {
uint8_t cap_id = pci_read_field(device, next, 1);
dprintf("@%d cap %d\n", next, cap_id);
if (cap_id == 9) {
/* vendor cap */
uint8_t len = pci_read_field(device, next+2, 1);
uint8_t type = pci_read_field(device, next+3, 1);
uint8_t bar = pci_read_field(device, next+4, 1);
uint32_t off = pci_read_field(device, next+8, 4);
dprintf("len=%d type=%d bar=%d off=%#x\n",
len, type, bar, off);
}
next = pci_read_field(device, next+1, 1);
} while (next);
}
struct virtio_device_cfg * cfg = (void*)((char*)mmu_map_mmio_region(t + 0x2000, 0x1000));
cfg->select = 1; /* ask for name */
cfg->subsel = 0;